8763 search results - page 237 / 1753 » Querying Database Knowledge |
153
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SIGMOD
2004
ACM
16 years 5 months ago
2004
ACM
Many modern software systems provide progress indicators for long-running tasks. These progress indicators make systems more user-friendly by helping the user quickly estimate how...
156
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LPNMR
2009
Springer
16 years 3 days ago
2009
Springer
Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
125
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SEMWEB
2004
Springer
15 years 11 months ago
2004
Springer
Faceted classification allows one to model applications with complex classification hierarchies using orthogonal dimensions. Recent work has examined the use of faceted classi...
159
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PAKDD
2005
ACM
15 years 11 months ago
2005
ACM
Traditional multiple query optimization methods focus on identifying common subexpressions in sets of relational queries and on constructing their global execution plans. In this p...
137
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DLOG
2007
15 years 7 months ago
2007
An important reasoning task, in addition to the standard DL reasoning services, is conjunctive query answering. In this paper, we present a decision procedure for conjunctive query...